Venetian blind



(No Model.)

8.8.PATTE880N. ,VENETIAN BLIND. No. 383,978. 8, Patented June 5, 1888.

WITNESSES: is Jugmron: I I BY #5516249? ATTORFEYS.

UNITED STATES PATENT OE rcE.

SAMUEL S. PATTERSON, OF WILKESBARRE, PENNSYLVANIA.

VENETIAN BLIND.

SPECIFICATION forming part of Letters Patent No. 383,978, dated June 5,1888.

(No model.)

To all whom it may concern:

Be it known that I, SAMUEL S. PATTERSON, of Wilkes-Barre, in the countyof Luzerne and State of Pennsylvania, have invented certain new anduseful Improvements in Venetian Blinds, of which the following is afull, clear, and exact description.

This invention relates to window and other blinds or shutters providedwith rolling or turning slats to admit or exclude the light, or air andlight, as required. As ordinarily constructed, these blinds or shutters,commonly known as Venetian, are more or less imperfect in their action,especially as regards excluding the light when closed, partly owing tothe impcrfectjoints formed by the overlapping slats one upon theotherthroughouttheir length, due to the rounded construct-ion of theupper edges of the slats, but mainly or more prominently owing to theopenings left between the ends of the slats, usually made wholly orpartially straight or square, and the sides of the casing or frame inwhich the slats are pivoted or hung. This is very objectionable insick-rooms and often distressing to the patient, and also veryannoyingin the summer time, when it is desired to keep a room perfectlydark, and to exclude insects and prevent destruction of or injury tofurniture and other articles in the room.

My invention has for its object the remed ying of this defect and toprovide for the blind or shutter, when its rolling slats are closed,effectually excluding sun or rays of light from passing by said slatsand through the blind or shutter; and the invention consists in a novelconstruction and combinations of parts,including both the slatsthemselves and the side pieces ofthe casing or frame in which they arehung, substantially as hereinafter described, and pointed out in theclaims, whereby not only the above-described result is very perfectlysecured, but the whole blind or shutter is made topresent a neatcrappearance.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 represents an inside face view of a Venetian blind or shutterembodying my in vention and having its one side partly broken away toillustrate the leading feature of its construction. Fig. 2 is a sectionof the same in part upon the line so a: in Fig. 1, and Fig. 3 is apartial sect-ion thereof upon the line y y in Fig. 1.

A B indicate the frame of the blind or shutter, B B being its stiles,side bars, or pieces in which the rolling or turning slats O are pivotedor hung, as by pivots or trunnions b, on

the opposite ends of each slat, as usual, and D is the slat-stick, bywhich the several slats are opened or closed simultaneously, as in theordinary way of working Venetian blinds or shutters, said stick beingconnected by engaging loops, as usual, (and which it is not necessaryhere to show,) with the several slats. Instead of the ends of the slats0, however, being made square or straight, and leaving wide cracks oropenings between them and the inside faces of the side bars, B, toinsure working freedom of the slats, which openings are in the line ofvision,or in direct courses through the blind or shutter, thus leavingpassages for light when the blind or shutter is closed, I make the slatsat their ends, both ends being alike, (though only their ends on oneside of the frame are here shown,) convex or curved from edge to edge inthe direction of their width, as at c, and of a curvature correspondingto the rolling action of the slats, and provide the inner face of eachside bar, B, with adjoining cavities d of concave shape or curvature tomatch the ends of the slats, and within which the ends of the slatsloosely enter, thus insuring working freedom to the slats back or out ofcourse with the line of vision. By making the entire ends of the slatscurved from edge to edge and arranging them in adjoining cavities, asabove described, the space between the ends of the slats and side barsis wholly within the cavities, so that the light is effectually excludedfrom penetrating past the ends of the slats when the latter are closed,and a heater appearance is given to the whole blind or shutter.

To prevent light from entering between the slats throughout their lengthwhen the same are closed, their upper and overlapping margins, e, aremade sharp and square or straight with the faces oftheslats,instead ofbeing made consisting of the frame A B, the side pieces, I5

rounding, thus giving a closer joint as well as a neater finish to theblind or shutter.

Having thus fully described myinvention, I claim as new and desire tosecure by Letters Patent- 1. In a Venetian blind or shutter, thecombination of the side bars of the frame having a series of adjoiningconcave cavities, and the pivoted slats having their ends curved fromedge to edge in the direction of their width, and fitting in and fillingsaid cavities from edge to edge, substantially as described.

2. An improved Venetian blind or shutter B, of which are provided withthe series of concave adjoining cavities d, and the slats 0, havingtheir ends curved from edge to edge in the direction of their width, andtheir upper overlapping margins, 6, straight and provided 20 with thepivots b, the said curved ends fitting in the cavities and filling thesame from edge to edge, substantially as herein shown and described.

SAMUEL S. PATTERSON. W'itnesses:

WEsLEY JoHNsoN, JNo. O. JEFFRIEs.

